烷基链长度对sio2基气凝胶性能的影响

IF 1.5 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2025-08-26 DOI:10.1134/S0036023625600431

I. O. Gozhikova, E. A. Straumal, S. Yu. Kottsov, E. Yu. Postnova, S. A. Lermontov

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引用次数: 0

摘要

采用（MeO）3Si - (CH2) 3-NHC (O) - r)酰化（3-氨基丙基）三甲氧基硅烷与四甲基氧基硅烷共凝胶，并在CO2中进行超临界干燥，得到了改性二氧化硅气凝胶。烷基取代基的延伸已被证明可以增加气凝胶的疏水性，直至形成超疏水材料（接触角为163.7°）。气凝胶的比表面积从40到1375 m2/g不等。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Impact of Alkyl Chain Length on the Properties of SiO2-Based Aerogels

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Impact of Alkyl Chain Length on the Properties of SiO2-Based Aerogels

Modified silica aerogels have been obtained by co-gelation of tetramethoxysilane and acylated (3-aminopropyl)trimethoxysilane of general formula (MeO)₃Si–(CH₂)₃–NHC(O)–R) followed by supercritical drying in CO₂. Alkyl substituent elongation has been shown to increase aerogel hydrophobicity up to formation of superhydrophobic materials (contact angle is 163.7°). Specific surface area of the aerogels can vary from 40 to 1375 m²/g.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.